The company quickly took responsibility for the glitch, but it also decided that the die had been cast and the tickets that had been sold would be honored.

Unfortunately for some, Ticketmaster’s original misfired email — the one sent Sunday with the link to buy tickets — was delayed in delivery.

On Monday afternoon, some unlucky few received the delayed email inviting them to buy tickets to already sold-out events.

“[S]ome customers … have just received the email about upcoming Inaugration events that was originally sent last night. This is not a new email,” Ticketmaster spokeswoman Jacqueline Peterson said in an email. “It was originally sent last evening and it appears that either the ISP and/or the email provider(s) held the delivery of this email.”